diff --git a/scripts/install b/scripts/install
index e391e14..a0e0438 100644
--- a/scripts/install
+++ b/scripts/install
@@ -52,6 +52,8 @@ ynh_script_progression --message="Installing The Lounge..." --weight=10
 
 pushd $install_dir
  	ynh_use_nodejs
+ 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack enable
+	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack prepare yarn@stable --activate
 	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install
 	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH NODE_ENV=production yarn build
 popd
diff --git a/scripts/upgrade b/scripts/upgrade
index 65648b6..3fd0ce8 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -65,6 +65,8 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	pushd $install_dir
  		ynh_use_nodejs
+ 		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack enable
+		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack prepare yarn@stable --activate
 		ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH yarn install
 		ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH NODE_ENV=production yarn build
 	popd